18335949429 has 32 divisors (see below), whose sum is σ = 28377303040. Its totient is φ = 10314101952.

The previous prime is 18335949427. The next prime is 18335949461. The reversal of 18335949429 is 92494953381.

It is not a de Polignac number, because 18335949429 - 2¹ = 18335949427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18335949427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2505027 + ... + 2512335.

It is an arithmetic number, because the mean of its divisors is an integer number (886790720).

Almost surely, 2^18335949429 is an apocalyptic number.

It is an amenable number.

18335949429 is a deficient number, since it is larger than the sum of its proper divisors (10041353611).

18335949429 is a wasteful number, since it uses less digits than its factorization.

18335949429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9169.

The product of its digits is 8398080, while the sum is 57.

The spelling of 18335949429 in words is "eighteen billion, three hundred thirty-five million, nine hundred forty-nine thousand, four hundred twenty-nine".